diff --git a/openbsc/include/openbsc/signal.h b/openbsc/include/openbsc/signal.h
index 0273586..a2257db 100644
--- a/openbsc/include/openbsc/signal.h
+++ b/openbsc/include/openbsc/signal.h
@@ -246,6 +246,8 @@
 
 struct input_signal_data {
 	int link_type;
+	uint8_t tei;
+	uint8_t sapi;
 	struct gsm_bts_trx *trx;
 	struct e1inp_line *line;
 };
diff --git a/openbsc/src/e1_input.c b/openbsc/src/e1_input.c
index b55fe2e..baebf2f 100644
--- a/openbsc/src/e1_input.c
+++ b/openbsc/src/e1_input.c
@@ -571,6 +571,8 @@
 
 	isd.link_type = link->type;
 	isd.trx = link->trx;
+	isd.tei = tei;
+	isd.sapi = sapi;
 
 	/* report further upwards */
 	dispatch_signal(SS_INPUT, evt, &isd);